import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'

Vue.use(VueRouter)

const routes = [
  { path: '', redirect: '/login' },
  { path: '/login', component: Login },
  {
    path: '/home',
    component: Home,
    children: [
      {
        path: '/welcome',
        component: Welcome
      },
      {
        path: '/users',
        component: Users
      }
    ],
    redirect: '/welcome'
  }
]

const router = new VueRouter({
  routes
})

// 挂在路由导航守卫,为了让没有登陆的用户强制跳转至登录页
router.beforeEach((to, from, next) => {
  // console.log(to)
  if (to.path === '/login') next()
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
export default router
